JPS63309347A - Pipe forging device - Google Patents
Pipe forging deviceInfo
- Publication number
- JPS63309347A JPS63309347A JP62144967A JP14496787A JPS63309347A JP S63309347 A JPS63309347 A JP S63309347A JP 62144967 A JP62144967 A JP 62144967A JP 14496787 A JP14496787 A JP 14496787A JP S63309347 A JPS63309347 A JP S63309347A
- Authority
- JP
- Japan
- Prior art keywords
- mandrel
- pipe
- taper
- segment
- line direction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005242 forging Methods 0.000 title claims abstract description 29
- 238000011144 upstream manufacturing Methods 0.000 claims description 10
- 230000013011 mating Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/08—Accessories for handling work or tools
- B21J13/10—Manipulators
- B21J13/12—Turning means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明はパイプ鍛造装置に関するものである。[Detailed description of the invention] [Industrial application field] The present invention relates to a pipe forging device.
［従来の技術］
従来、継目無しパイプを製造する装置は、第５図で示す
ように、一対の溝付ロールａ、ａの間に心棒Ｃを挿入し
、パイプ素材すを心棒Ｃに外嵌して溝付ロールａ、ａ間
に送給し、パイプ素材すを溝付ロールａ、ａで押潰して
継目無しパイプを得るようにしている。[Prior Art] Conventionally, as shown in FIG. 5, a device for manufacturing a seamless pipe inserts a mandrel C between a pair of grooved rolls a, a, and externally fits a pipe material onto the mandrel C. The material is then fed between grooved rolls a and a, and the pipe material is crushed by the grooved rolls a and a to obtain a seamless pipe.
しかし、溝付ロールａを用いて継目無しパイプを製造す
る装置では、通常、パイプ素材すに対して溝付ロールａ
、ａは数百トン程度の荷重しか掛けられないため、硬度
の高いパイプを製造するためには溝付ロールａを多数配
列して製造ラインを長く構成しなければならない。However, in a device that uses grooved rolls a to manufacture seamless pipes, the grooved rolls a are usually
, a can only carry a load of about several hundred tons, so in order to manufacture a pipe with high hardness, a long production line must be constructed by arranging a large number of grooved rolls a.
そこで斯かる問題を解決するために、心棒に外嵌したパ
イプ素材を鍛造プレスを用いてプレスするようにして継
目無しパイプを製造する装置か提案されている。In order to solve this problem, an apparatus has been proposed for manufacturing a seamless pipe by pressing a pipe material fitted around a mandrel using a forging press.
［発明か解決しようとする問題点］
しかしながら上記鍛造プレスを用いたパイプ鍛造装置で
は、鍛造プレスにより大きな荷重をパイプ素材に掛ける
ため、製造されたパイプと心棒が一体化して、鍛造後に
パイプから心棒が引き抜けなくなってしまうという問題
か生じていた。[Problems to be solved by the invention] However, in the pipe forging device using the forging press described above, since a large load is applied to the pipe material by the forging press, the manufactured pipe and mandrel are integrated, and the pipe is separated from the mandrel after forging. There was a problem that the paper could no longer be pulled out.
本発明は上述の実情に鑑み、鍛造プレスによる成形後の
パイプから心棒を容易に引き抜き得るようにしたパイプ
鍛造装置を提供することを目的としたものである。In view of the above-mentioned circumstances, it is an object of the present invention to provide a pipe forging device that can easily pull out a mandrel from a pipe formed by a forging press.
［問題点を解決するための手段］
本発明は、合せ面に縦断面が略円形でライン方向に延び
る空間を形成した上下の金型を近接離反可能に取付けた
鍛造プレスと、ライン方向に延びる心棒を中心部に挿通
したパイプ素材の上流側端部を把持し且つ該パイプ素材
を上流から前記鍛造プレスの金型空間内に送るライン方
向移動可能なマニプレータとで構成されるパイプ鍛造装
置において、前記心棒を、内面にライン方向のテーパを
形成した心棒表面部のセグメントと、該セグメントのテ
ーパと合致するテーパを外面に形成してセグメント内部
をライン方向移動可能に挿入した主軸とて構成し、パイ
プ鍛造装置としたちのである。[Means for Solving the Problems] The present invention provides a forging press in which upper and lower molds, each of which has a substantially circular vertical cross section and a space extending in the line direction, are attached so as to be able to approach and separate from each other; A pipe forging device comprising a manipulator movable in a line direction that grips an upstream end of a pipe material with a mandrel inserted through the center and feeds the pipe material from upstream into a mold space of the forging press, The mandrel is configured with a mandrel surface segment having a taper in the line direction formed on the inner surface, and a main shaft having a taper formed on the outer surface that matches the taper of the segment and inserted into the segment so as to be movable in the line direction, Toshino is a pipe forging device.
［作 用］
従って本発明では、パイプを製造する場合には、パイプ
素材に挿入した心棒の内部の主軸をライン方向に移動し
セグメントのテーパに対して主軸のテーパを楔入させ、
セグメントの外径を拡げ製造したパイプから心棒を引き
抜く場合には、心棒内部の主軸をライン方向反対側に移
動しセグメントのテーパと主軸のテーパを合致させ、セ
グメントの外径を縮める。[Function] Therefore, in the present invention, when manufacturing a pipe, the main shaft inside the mandrel inserted into the pipe material is moved in the line direction to wedge the taper of the main shaft against the taper of the segment,
When pulling out a mandrel from a pipe manufactured by expanding the outer diameter of the segment, the main shaft inside the mandrel is moved to the opposite side in the line direction, the taper of the segment matches the taper of the main shaft, and the outer diameter of the segment is reduced.
［実 施 例コ 以下、本発明の実施例を図面を参照して説明する。[Implementation example] Embodiments of the present invention will be described below with reference to the drawings.
第１図乃至第４図は本発明の一実施例の説明図である。1 to 4 are explanatory diagrams of one embodiment of the present invention.
合せ面に縦断面が略円形をし且つ軸線（以下軸線と言う
）かライン方向に向う、空間１を形成した上下一対の金
型２，３に、該金型２，３を上下に近接離反させる駆動
装置４．５を接続して成る鍛造プレス６を基礎上に据付
け、鍛造プレス６の上流にライン方向に延びるガイドレ
ール１４を敷設し、ガイドレール１４上にマニプレータ
１５を配置する。The molds 2 and 3 are vertically approached and separated from a pair of upper and lower molds 2 and 3 forming a space 1 whose mating surfaces have a substantially circular longitudinal section and are oriented in the direction of the axis (hereinafter referred to as the axis). A forging press 6 connected to a driving device 4.5 is installed on a foundation, a guide rail 14 extending in the line direction is laid upstream of the forging press 6, and a manipulator 15 is placed on the guide rail 14.
該マニプレータ１５は以下の構成を備えている。The manipulator 15 has the following configuration.
ガイトレール１４に沿って移動するローラ１６を備えた
本体１７の上流側をライン方向に伸縮するキャリアシリ
ンダ１８に接続し、本体１７内部にピニオンギア１９を
有するモータ２０を設け、前記軸線上に存在する操作軸
２１を鍛造プレス６側から本体１７内部に向は本体１７
に設けた軸受２２を介して回転自在に挿通し、操作軸２
１の本体１７内側端に前記ピニオンギア１９と噛合する
ギア２３を取付けると共に操作軸２１の鍛造プレス６側
端にトングヘット２４を取付け、トングヘッド２４の鍛
造プレス６側端て且つ前記軸線に関して対称の位置に先
端か鍛造プレス６に向って延びる一対のトングレバー２
５．２６の中途部を前記軸線を中心とする円の接線方向
に延びるビン２７．２８で回転可能に枢青し、両トング
レバー２５．２６の後端に開閉シリンダ２９を接続して
いる。The upstream side of a main body 17 equipped with a roller 16 that moves along a guide rail 14 is connected to a carrier cylinder 18 that expands and contracts in the line direction, and a motor 20 having a pinion gear 19 is provided inside the main body 17, and the motor 20 is located on the axis. The operation shaft 21 is directed from the forging press 6 side to the inside of the main body 17.
It is inserted rotatably through a bearing 22 provided in the operating shaft 2.
A gear 23 that meshes with the pinion gear 19 is attached to the inner end of the main body 17 of 1, and a tong head 24 is attached to the forging press 6 side end of the operating shaft 21. A pair of tongue levers 2 extending toward the tip or forging press 6 at the position
The middle part of 5.26 is rotatably pivoted by a pin 27.28 extending in the tangential direction of a circle centered on the axis, and an opening/closing cylinder 29 is connected to the rear ends of both tongue levers 25.26.
鍛造プレス６に送給するパイプ素材７は、中心部に心棒
９を挿入するライン方向に延びる挿入孔１３を形成する
。The pipe material 7 to be fed to the forging press 6 has an insertion hole 13 in its center extending in the direction of the line into which the mandrel 9 is inserted.
前記心棒９は、縦断面矩形でライン方向に延び中央部外
面にライン方向に延びる複数段のテーパ３０を形成した
主軸３１に対し、下流側端部に鍔３２を有するシリンダ
３３を前記主軸３１の上流側端部に接続し、前記主軸３
１のテーパ３０に合致するテーパ３４を内面に形成し且
つ円を四等分した円弧状の曲面を外面に形成し更に上流
側端部の外面にスプリング受け３５を凸段すると共に下
流側端部の外面にスプリング受け３６を凹設したセグメ
ント３７を、前記主軸３１の外面に四つ組合せて円柱状
の外観を形成し、上流側のスプリング受け３５にセグメ
ント３７を主軸３１に向けて付勢するスプリング３８を
挿入してスプリング受け３５を、前記シリンダ３３の鍔
３２と共にストッパ部材３９でタガ止めし、下流側のス
プリング受け３６にセグメント３７を主軸３１に向けて
付勢するスプリング４０を挿入してセグメント３フ外面
から突出しない径のリンク４１てセグメント３７をりが
止めするようにしたものである。The mandrel 9 has a cylinder 33 having a flange 32 at the downstream end of the main shaft 31, which has a rectangular longitudinal section, extends in the line direction, and has a plurality of tapers 30 extending in the line direction on the outer surface of the central part. connected to the upstream end and connected to the main shaft 3
A taper 34 that matches the taper 30 of No. 1 is formed on the inner surface, and an arc-shaped curved surface obtained by dividing a circle into four equal parts is formed on the outer surface, and a spring receiver 35 is provided on the outer surface of the upstream end. Four segments 37 with spring receivers 36 recessed on the outer surface of the main shaft 31 are combined to form a cylindrical appearance, and the upstream spring receiver 35 urges the segments 37 toward the main shaft 31. A spring 38 is inserted, the spring receiver 35 is clamped together with the collar 32 of the cylinder 33 by a stopper member 39, and a spring 40 that biases the segment 37 toward the main shaft 31 is inserted into the downstream spring receiver 36. The segment 37 is fixed by a link 41 having a diameter that does not protrude from the outer surface of the segment 3.
次に、作動について説明すると、先ずパイプ素材７の挿
入孔１３に心棒９をストッパ部材３９が当たるまで挿通
し、心棒９のシリンダ３３を伸長して主軸３１のテーパ
３０の位置をセグメント３７のテーパ３９に対してずら
しセグメント３７を外面に向けて押すことにより心棒９
の外径を拡げ、心棒９を挿通したパイプ素材７の末端（
上流側端部）を開閉シリンダ２９を作動してマニプレー
タ１５のトングレバー２５．２６で把持する。Next, to explain the operation, first insert the mandrel 9 into the insertion hole 13 of the pipe material 7 until the stopper member 39 comes into contact with it, extend the cylinder 33 of the mandrel 9, and adjust the position of the taper 30 of the main shaft 31 to the taper of the segment 37. Mandrel 9 by pushing segment 37 outward relative to 39
The end of the pipe material 7 with the outer diameter expanded and the mandrel 9 inserted (
The upstream end) is gripped by the tongue levers 25 and 26 of the manipulator 15 by operating the opening/closing cylinder 29.
パイプ素材７をマニプレータ１５て把持したら、キャリ
アシリンダ１８を伸長してマニプレータ１５を下流側に
移動し、パイプ素材７より突出した心棒９の先端（下流
側端部）を鍛造プレス６の金型２．３間の空間１内に挿
通し更にマニプレータ１５を進めてパイプ素材７の先端
（下流側側端部）を金型２．３間にセットする。Once the pipe material 7 is gripped by the manipulator 15, the carrier cylinder 18 is extended, the manipulator 15 is moved to the downstream side, and the tip (downstream end) of the mandrel 9 protruding from the pipe material 7 is inserted into the mold 2 of the forging press 6. The manipulator 15 is further advanced to set the tip (downstream end) of the pipe material 7 between the molds 2 and 3.
パイプ素材７を鍛造プレス６にセットしたら、鍛造プレ
ス６を駆動し、金型２，３にてパイプ素材７を成形する
。この際パイプ素材７を周方向均一に成形するためにマ
ニプレータ１５のモータ２０を間欠的に駆動しパイプ素
材７に回転を与える。After the pipe material 7 is set in the forging press 6, the forging press 6 is driven and the pipe material 7 is formed by the molds 2 and 3. At this time, in order to form the pipe material 7 uniformly in the circumferential direction, the motor 20 of the manipulator 15 is intermittently driven to give rotation to the pipe material 7.
こうして、パイプ素材７を順送りしなから同様に成形を
行いパイプを製造する。In this way, the pipe material 7 is sequentially fed and then molded in the same manner to manufacture a pipe.
パイプ装造終了後心棒９のシリンダ３３を収縮して主軸
３１のテーパ３０をセグメント３７のテーパ３４に対し
て合致させることにより心棒９の外径を縮めパイプから
心棒９を容易に引き抜く。After the pipe installation is completed, the cylinder 33 of the mandrel 9 is contracted to align the taper 30 of the main shaft 31 with the taper 34 of the segment 37, thereby reducing the outer diameter of the mandrel 9 and easily pulling out the mandrel 9 from the pipe.
尚、本発明は上述の実施例に限定されるものではなく、
本発明の要旨を逸脱しない範囲内て秤々変更を加え得る
こと等は勿論である。It should be noted that the present invention is not limited to the above-mentioned embodiments,
It goes without saying that various changes may be made within the scope of the invention without departing from the spirit of the invention.
［発明の効果］
上記したように、本発明のパイプ鍛造装置によれは、心
棒外径を拡縮てきるため、製造されたパイプから心棒を
容易に引き抜き得る等の種々の優れた効果を奏し得る。[Effects of the Invention] As described above, the pipe forging device of the present invention can expand and contract the outer diameter of the mandrel, and therefore can produce various excellent effects such as being able to easily pull out the mandrel from the manufactured pipe. .
第１図は本発明の一実施例の説明図、第２図は第１図の
■−■矢視図、第３図は引き抜き時の心棒の説明図、第
４図は第３図のＩＶ−ＴＶ矢視図、第５図は従来例の説
明図である。
図中１は空間、２．３は金型、６は鍛造プレス、７はパ
イプ素材、９は心棒、１３は挿入孔、１４はガイドレー
ル、１５はマニプレータ、３０はテーパ、３１は主軸、
３３はシリンダ、３４はテーパ、３７はセグメントを示
す。FIG. 1 is an explanatory diagram of an embodiment of the present invention, FIG. 2 is a view taken along the ■-■ arrow in FIG. -TV arrow view, FIG. 5 is an explanatory diagram of a conventional example. In the figure, 1 is a space, 2.3 is a mold, 6 is a forging press, 7 is a pipe material, 9 is a mandrel, 13 is an insertion hole, 14 is a guide rail, 15 is a manipulator, 30 is a taper, 31 is a main shaft,
33 is a cylinder, 34 is a taper, and 37 is a segment.
Claims (1)
を形成した上下の金型を近接離反可能に取付けた鍛造プ
レスと、ライン方向に延びる心棒を中心部に挿通したパ
イプ素材の上流側端部を把持し且つ該パイプ素材を上流
から前記鍛造プレスの金型空間内に送るライン方向移動
可能なマニプレータとで構成されるパイプ鍛造装置にお
いて、前記心棒を、内面にライン方向のテーパを形成し
た心棒表面部のセグメントと、該セグメントのテーパと
合致するテーパを外面に形成してセグメント内部をライ
ン方向移動可能に挿入した主軸とで構成したことを特徴
とするパイプ鍛造装置。1) A forging press in which upper and lower molds, each with a substantially circular longitudinal section and a space extending in the line direction, are attached so that they can approach and separate from each other on the mating surfaces, and a pipe material on the upstream side with a mandrel extending in the line direction inserted through the center. A pipe forging device comprising a manipulator capable of moving in a line direction that grips an end portion and feeds the pipe material from upstream into a mold space of the forging press, wherein the mandrel is formed with a taper in the line direction on an inner surface. A pipe forging device comprising: a segment on the surface of the mandrel; and a main shaft having a taper formed on the outer surface that matches the taper of the segment and inserted into the segment so as to be movable in a line direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62144967A JP2521958B2 (en) | 1987-06-10 | 1987-06-10 | Pipe forging equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62144967A JP2521958B2 (en) | 1987-06-10 | 1987-06-10 | Pipe forging equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63309347A true JPS63309347A (en) | 1988-12-16 |
| JP2521958B2 JP2521958B2 (en) | 1996-08-07 |
Family
ID=15374355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62144967A Expired - Fee Related JP2521958B2 (en) | 1987-06-10 | 1987-06-10 | Pipe forging equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2521958B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2556906A1 (en) * | 2011-08-12 | 2013-02-13 | GFM GmbH | Device for forging a hollow body |
| AT517627A3 (en) * | 2015-09-04 | 2018-12-15 | Sms Group Gmbh | Tool and method for forging a pipe and forming machine |
| CZ309091B6 (en) * | 2019-12-20 | 2022-01-26 | ŠKODA AUTO a.s. | Mandrel for drop forging |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59133929A (en) * | 1983-01-19 | 1984-08-01 | Nippon Steel Corp | Rolling method of long columnar body |
| JPS6068130A (en) * | 1983-09-24 | 1985-04-18 | Mitsubishi Heavy Ind Ltd | Method and device for forming cylindrical object |
-
1987
- 1987-06-10 JP JP62144967A patent/JP2521958B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59133929A (en) * | 1983-01-19 | 1984-08-01 | Nippon Steel Corp | Rolling method of long columnar body |
| JPS6068130A (en) * | 1983-09-24 | 1985-04-18 | Mitsubishi Heavy Ind Ltd | Method and device for forming cylindrical object |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2556906A1 (en) * | 2011-08-12 | 2013-02-13 | GFM GmbH | Device for forging a hollow body |
| US9409226B2 (en) | 2011-08-12 | 2016-08-09 | Gfm-Gmbh | Apparatus for forging a hollow body |
| AT517627A3 (en) * | 2015-09-04 | 2018-12-15 | Sms Group Gmbh | Tool and method for forging a pipe and forming machine |
| AT517627B1 (en) * | 2015-09-04 | 2019-02-15 | Sms Group Gmbh | Tool and method for forging a pipe and forming machine |
| CZ309091B6 (en) * | 2019-12-20 | 2022-01-26 | ŠKODA AUTO a.s. | Mandrel for drop forging |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2521958B2 (en) | 1996-08-07 |
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